Belt fastening and riveting apparatus



April 24, 1928. 1,667,294

- S. D. MYERS -BELT FASTENING AND RIVETING APPARATUS File/jeb. 12. 1927 2 Sheets-Sheet 1 A TTUHNEY April 24, 1928. 1,667,294

S. D. MYERS BELT FASTENING AND RIVETING APPARATUS Filed Feb. 12. 1927 2 Sheets-Sheet 2 Patented Apr. 24, 1928.

UNITED siarss- PATENT orricnf i STANLEY DMYERS, er Rosmarin, NEW'JEBSEY.

BELT rAsTnNIivs Anny RivETrNG APPARATUS.

Application led February 12, 1927. Serial No. 167,638.

This application which is a continuation in part ot' Vmy application Serial Number 183,480, led September 3rd, 1926, relates to means for splicing belts, wherein a pai'.-V ticular style of belt fastener is used.` The` astener whichis contemplated intliis ap-` plication is that generally known in the trade as` the Crescent. `This type of fastener consists of a metal` plate'varying indimen-` sions according to the use and characteristics of the belt`to which they are applied. These metal fasteners or grip` lates are,

according to past practice, foun ed on the directions given by the manufacturers thereof. attached by placingthe belt ends over a block of wood,and then driving a special form of split rivet through the belt, it being understood that the grip plates are provided with holes to receive the rivets. Ac-

cprding to Athe present practice, after the` rivets have been driven througligtlie belt as:

taneously with the driving-operating of the` rivets thru the belt they are clinched in a secure manner, so that when the last rivet is driven, the complete splicing is finished, and

the beltis ready for use. when it is removed frointhe fixture er belt lfastening and riveting apparatus. Another object of my invention is te provide an apparatus `for splicing belt ends in which proper alignment of Vthe belt is assured, so that after the splicing or riveting operation has been performed `the belt will run true over the pulleys.

Another object of my invention is to pro-` vide means included as a part `of the apparatus, which positions the grip plates in the proper manner, so that the complete riveting operation is assured. zI

These and'other objects will be apparent to eneskilled iii this art, after a reading of the specificationtaken in connection with the amiexed diawing, whereiti-f.,y

Figure 1 is a plan view of the apparatus bei'ore the belt is inserted.

` Figure 2 is a vertical longitudinal section on the line 2-2of Figure `1, the cam locking iiicans beingshown iii full linesin posi- Vtion topermit the clampstobe raisedfor inserting the belt, and also showing in dotted lines the positioni of the cam locking means when holding the belt in the apparatus.

i Figure 3 is a transverse view of Figure 2 en the line 3 3. f

Figure 4 is a view similar te Figure 3,`but

showing the. belt in position, and likewise a i' belt fastener or grip plate.A i u Figure 5 is a perspective view ofthe apparatus showing the belt ends in position, and

likewise a pair of grip plates, but with a` slightly different style oli' cam Iloeking means than that shown in Figure 2.

Figure v(i is a fragmentary sectional view:

on the line A-A of Figiire. Figure clamps shown in Figures 1 and 5,. n

Figure 8 is a `fragmentary sideview showi is a side view of one et the ing the end of the clamp and the `cam engaging member at one end of the apparatus.

Figure 9 is a side view` of the locking cani member shown inFigure 5.

Figure 10 is a plan viev7 et' one ofthe guide members oii the clamps shown in Figure 5.

Figure 11 is aside view of Figure 10,

while Figure 12 is an end view of Figure `10, the saine being` turned degrees.l

Referring new `to the details, wherein like numbers refer to corresponding parts yiii the various views: 1 is a base, preferably iiiade of cast iron, or caststeel and as shown in Figures `1 and` 2, is in the form et a plate. Preferably tlieupper suriace of the base or plate 1 isiiiade according to its width, arcuate in form te simulate the arc of a pulley. Extending. across` the upper surface for a considerable portion of the width, is a series of transverse ridges 2, sloping down to grooves 3 and et. on each sidefo't the ridges. In other woids, a ridge 2 is followed by a groove 4.

These ridges are spaced a distance apart 5,

in the plate 1 (see Figure 5) to correspond withl the arrangementI of holes in `the grip plates 6. In the forni shown in Figure 1. the special Vgrip plates 6, herein referred tofgare provided with bosses 7 usually symetrically arranged and tliesebosses are utilized to properly position the grip plates (i on the apparatiis,so as to insure that the holes Sin `the grip plates come over some ridge 2,in the base member 1.

In the form shown in Figure 1, the belt ends are held to the basel, by `clamps 9 and 10, which have downwardly bentw ends 11, passing through slotsor holes in the base 1. In Figure 1, the belt clamp 1t), is provided with recesses 12,` to receive the bosses 7 of the plates 6.

In Figure 5 instead of the clamp 10 being provided with recesses `12, I provides. separate guide clamp or member 13 which has the recesses 12 made therein.

The member 13 is held by means of a screu7 15 `carried .by the clamp 10 and engaging a threaded screw hole 14;, as is clearly shown in Figure 5. In the perspective view shown in F igure 5, the grooves 12, in one member 13 are hidden by the c'lalnp 9. However it is to be understood that tvvo of the guide members 13 may not be used as I have found in many cases, one is sufficient, which is evident from an inspection of Figure 1Wl1erein only one of the clamps, namely 10, is provided with the recesses 12, to receive the bosses 7 of the grip plates 6,

In order to insure that the belt ends are brought into proper alignment so that the belt Will run true, after it has been spliced,

I provide a longitudinal slot 16 across the face of "the base 1. IVhen placing the belt ends in position on the apparatus a square is set inthe slot 16 and the belt ends are brought against the square and if the ends are notdtrue, they can` be trimmed so as to make proper joint as: indicated by the square. The clamps 9 guide member 13 if used, are then put in position, and the lugs 31 and 32 on the guide n'iember assist in holding the belt from shifting. 11s shown in Figure 2, Ythe cam members `17 and 18 are turned up wardly and driven outwardly as indicated by the dotted lines, it being understood that the ends 11 of the clamps are provided with slots 19 for the members 17 and 18,` TWhile the members 17 and 18 are shown positioned as indicated in Figure 2, it is to be understood that they can be positioned in the slots 19, in reverse direction to that shown and when sopositioned hamn'ier blowsk can applied to the ends 2O more conveniently than when the cam members 17 `and 18 `pro- .ject inwardly as shown in dotted lines.

It is also to be understood that While the clamp@ is shown Without the recesses 12 a duplicate ofclamp 1 0 may be used instead. y

In Figure 5, the base 1 is provided with a plurality of downwardly extending lugs for the base 1 to rest on. These lugs are indicated by the numerals 20, 21 and 22. The lugs 2O and 21 are spaced a short distance apart to form a guideufay for the end 11 of the belt clamps `9 and 10, The

and 10 carrying the.

reason for this will be obvious by reference to Figure 9, which shows a double ended cam member 23, having cam surfaces 24 and '25 to Work in the slots 19 in opposite ends 11 of the clamps, whereby the clamps are drawn securely in position to hold the belt ends in place Each cani member 93 is provided with a notch 2G, that acts to engage the inner side of the lug 22, key is moved to release position, so that the cam key prevented from being Withdrawn entirely from the lugs, and in order to prevent the end 28 of the cam key menr ber 23, from dropping downwardly, the end 28 thereof, after ithas been Withdrawn from the slot 11 in the corresponding end of the clamp, still rests in the lug 2l, when the notch 26 is in engagement with the edge 27 of the lug 22.` lVhen the cam members 2B are in release position, as just described the clamps 9 and 10 (of Figure 5) can be raised up and the ends asst'iciated with the lugs 2O and 21 can be pulled entirely out oit the slot in the base, it being understood that the left hand end 11 (see FignreT) of the clamps is preferably shorter than the right hand end which latter end is provided with a slot considerably longer than the slot in the left hand end'. After the left hand end is raised above the base,` the belt ends can be slid into the apparatus or fixture, after which the clamps aredropped into position, and the key members .J3 driven home, by blows on the ends 29, thus drawing the clamps S) and 10 into position as described.`

Preferably the clamps 9 and 10 are made of spring steel and are normally bowed as indicated by the 'full lines in Figure 7, but when the cam members 23 are driven home to clamp the belt ends the clamps 9 and 10 straighten out as indicated by the dotted lines 30 so as to provide a straightline engagement across the entire Width of the belt ends, thus `clamping the belt very se cureiy inY position. f

When the. guide clamps 13 are used they are positioned as indicated in Figure 5, in the manner already described. and the clamps Q-and 10 act to force these guide members against the surface et the belt` Besides acting as supportsfor the base 1, and as guides for the ends 1l, o't'the clan'n'is: the lugs Q0; .21 and 22am so formed as to prevent the ends 11 from being bent out of alignment When 'the cam members `Q3 are driven in to dravv the clamps down against the beit, y i

Atte/r the belt has been placed in position together with the grip plates G in the man-- ner described', and asillustrated in Figure 5, the .special split rivets are placed inthe hole. and driven through the belt itv being od that the rivets so held that the plane of the slot in the 'rivet is parallel with the ridges When the i As the prongs ofi thel loo lll

lou

Y tions in the grip plates will be substantially.

rivetengage the opposite sides of the` ridge,

they are directed by the grooves 3 and et in a manner asindicatedin Figure 6, and are turnedupward so as to `beforced into the pulley surface of the belt, whereby when they are driven `all the way home, the inner surface ofthe belt is left perfectlysmooth the detailsentering into the` construction of my belt fastening andgrivcting apparatus without departing'from the spirit of myinv vention or the scope ofthe appended claims.

Havingthus described my invention, what I claim is :V i

l. An apparatus for fastening andrivet ing belts utilizing perforated metal `grip plates and rivets having split ends comprisins; of the belt, said baseniember having a series of transverse ridges and grooves, a pair of clamps disposed one on each side of the base memberiso as kto vengage a belt end, said clamps being` spaced apart to receive saidV grip plates therebetween. means for drawing the clamps tightly down onto thebelt ends, and means associatedwith at least one of the clamps topositionsaid grip plates so the perforations inthe grip plates will be` substantially po'sitionedover ridges in the base member whereby when a split rivet is inserted in a perforation andv driven through the belt the" opposite portions of the rivet will follow the `contour of the grooves on opposite sides of a given ridge of the said base member `having a series of4 transverse ridges and grooves. and a longitudinal slot to receive a squaring device by i which `theends of the belt are properly aligned, a pair of clamps carried by the base f member in spaced relationship so as to engage the opposed belt ends, means coacting between the basemember and the clamps for `drawing them tightly against the `belt ends, and means for positioning the grip plates between the clamps so thefperforapositioned over ridges iii the base member whereby when awsplit rivet is inserted in a perforationand driven through the belt the opposite portions `of the rivet willfollowthe contourof the grooves on opposite sides of a givenridge` and `be -forced by the next adjacent ridge to enter` the pulley side ofthe belt thereby clinching the rivet.

` 3, An apparatus. `ter fastening has been said it will be ob-: vious that many changes may be made in` a base member to receive the two ends i and rivet:`

ing belts, utilizing perforated metalfgrip plates and rivets havingsplit ends compris` ing; a basemember. toreceive thetwo' ends of the belt, said base member having a series ofk transverse ridges and grooves, a pair `of t clamps disposed one 'on each side of the-base j memberw'so as to engage a beltend,rsaid' clamps being spaced apartfto receive said, grip platestherebetween, and having downwardly bent ends passing through tl'iebase` member,` said` ybent 4ends having `openings tliereinfcam members passing through said openings 'and adapted when operated' jto lockingposition' to` draw the clamps se ciirelyv against the belt ends, and means for positioning the grip plates rbetween the clamps so the perforations in the grip plates will be substantially positionedover ridges in the base member whereby when a split rivet is inserted in a perforation and driven through the belt the oppositew portions of the rivet will `follow the `contour of the grooveson opposite sides of'a given ridge and be forced by the next adjacent ridge tol enter the pulley `side of the belt thereby clinching the rivet. t i' 4. An apparatus for fastening and rivet-V ing belts'utilizing perforated'metal grip plates and rivets having split endscompris-y ing; a base member to receive the two ends of the belt, said ibase member having-'aq series of transverse ridges andgrooves, a pair of clamps disposed one on each side of the base member so asito engage a belt end, said clamps being spaced apart to receive said grip plates therebetween, said clamps being when not under tension bowed at their central portions toward the base, meansfor engaging the extremities of the 4clamps to draw them toward a straight position whereand rivetby they engage and clamp "thebelt ends across their wlio`1e width, and means for j positioning' the grip 4plates between the clamps so the perforations inthe grip plates will be substantially positioned over ridges in the base inembenwhereby when a split rivet is inserted in aipei'foration and driven through thebelt the opposite' portions of the rivet will follow the contour of the-grooves on ,oppositesides of a given Aridge and be forcedby the nextladjacentridge to enter l the pulley `side of the belttherebyclincliing i the rivet. w

5. An apparatus for vfastening and riveting belts utilizing perforated metal grip plates and rivets having split ends comprising; a basemcmber to receive the two ends of the belt, saidbase member having a series ot transverse ridges and grooves, and a plurality of downwardly projecting lugs, said lugs havingslots therethrouglu` a pair of clamps ar anged one on each side of the base and having downwardlyv turned ends passing throughthebase adjacent'said lugs, said clamp ends having slots adapted t0 be broughttinto alignment with the slots in the lugs, slidable cam members carried Vby said lugs and passingthrough the slots in the clamp ends for drawing the clamps securely against the belt ends, and means for positioning the grip plates between the clamps so the perforations in the grip plates will be substantially positionedover ridges inthe baseimember whereby `when ak split rivet is inserted in a perforation and driven through the belt,: the opposite portions of the rivet? Willfollow the contourof the grooves on opposite sides of a given ridge and be forced by the next adjacent ridge to enter the `pulley side ofthe belt thereby clinching the rivet.

6. An `apparatus for fastening and riveting belts utilizing perforated metal grip plates and rivets having split ends comprising; a base member to receive the two ends of the belt,1 said base member having a series of transverse `ridges and grooves, a pair of` clamps disposed one on each side of the base memberso as to engage a belt end, said clamps being spaced apart to `receive said grip plates therebetween, means for drawing the clamps tightly down onto the belt ends, and a guide plate detachably carried by at least one of the clamps for positioning the grip platesbetween'the clamps so the perforations therein will be substantially positioned over ridges in the base member whereby when a split rivet is inserted in a` perforationuand driven through the belt the opposite portions of the rivet will follow the contour of the grooves on opposite sides ofV a given ridgeand be forced by the next adjacent ridge to enter the pulley side of the belt thereby clinching the rivet.

7. An apparatus for fastening and riveting belts utilizing` perforated metal grip plates and rivets having, split ends comprising; a base member to receive the two ends of the belt,isaid base member having a series of transverse ridges andV grooves,` a pair of f clamps disposed one on each side of the base member so as to engage a belt end, said clamps `being spaced apart to receive said grip plates.therebetween, means for drawing the clamps tightly down onto the belt ends, and a guide plate, detachably carried by each of said clamps, having llugs for engaging the side of the belt end to prevent lateral movement thereof and also having notches to receive projections on the grip plates so said grip plates will. be substantially positioned over ridges in the base member whereby when a split rivet is inserted in a perforation and driven through the belt the vopposite portions of the rivet will follow: the contour of the grooves on opposite sides ofv a given ridge and be forced by the next: adjacent ridge to enter' Lthe pulley sideof the belt thereby clinching the rivetF 8. An apparatus for fastening'and rivet-` ing bel-ts utilizing perforated metal grip plates and rivets having split ends comprising; a base member' to receive-the two ends base member in spaced relationship nor-,

mally bowed toward the base, manually operable means co-acting between the base member and the-ends of the clamps acting to straighten the clamps to secure effective clamping `across the full width of the belt ends, and a `guide plate detachably carried by at least one clamp for positioning the grip plates between the clamps so the perforations therein will be substai'itially positioned over ridges in the base member whereby when a split rivet is inserted in a perforation and driven through the belt the opposite portions of the rivet will follow the contour of the grooves on opposite sides of a given ridge and be forced by the next adjacent ridge Vto enter the pulley side of the belt thereby clinching the rivet.

9. An apparatus for fastening and riveting belts utilizing perforated metal grip plates and rivets having split ends comprising; a basemember to receive the two ends of the belt, means for assisting in properly` aligning the belt ends in squared relationship on the base, a clamp for each belt end, means for drawing the clamps securely across the belt ends, means for positioning the grip plates betweenV the clamps, and means onthebase for directing the split rivet ends after' they have been placed in the plate perforations and driven through the belt, so they will be clinched into the pulley side of thebelt.

l0. Anapparatus for fastening and riveting belts utilizing perforated metal grip plates and rivets having split ends comprising; a base member to receive the twol ends kof the belt, a pair of clamps having a length greater that the width of the blelt to be spliced, positioned one on each side of and carried by the base, means for (ilrawing the clamps securely across the belt ends, means associated with at least one of the clamps for properly positioning the grip plates between the clamps. and means on the base for directing the split rivet ends after they have been` placed in the plate perforations and driventhrough the belt, so they will be clinchedv into the pulley side of tl belt.

1l. An apparatus for fastening and riveting belts utilizing perforated metal grip plates and rivets having split ends comprising; a base member to receive the two `ends of the belt,: a pair of clamps` having a length greater than the width ofthe belt to (be spliced, positioned one on each side of and I Il) carried by the base, said clamps being nor-` mally bowed so their central portions engage the belt before their extremities, means engaging the ends of the clamps for drawing them securely across the belt ends, adjustable and detachable means associated with at least one of the clamps for properly positioning the grip plates between the clamps, and means on the base for directing the split rivet ends after they have been placed in the plate perforations and driven through the belt, so they will be clinched into the pulley side of the belt.

y l2. An apparatus for fastening and riveting belts utilizing perforated metal grip plates, and rivets having split ends comprising; a base member to receive the two ends of the. belt, said base member having a series of transverse ridges and grooves, and a plurality of downwardly projecting lugs on opposite edges of the base, the lugs at one end being arranged in pairs spaced a short distance apart, said lugs having slots therethrough, a pair of clamps arranged on opposite edges of the base corresponding to the lugs and having downwardly turned ends passing outside the lugs at one end of the base and between the spaced lugs at the other end of the base, said clamps having slots therein, slidable double ended cam members carried in the lug slots and passing through the slots in clamp ends, means on said cam members cooperating with the single lug at one end of the base to limitthe release position of the cam member so the end passing between the pair of spaced lugs can just be withdrawn from the clamp slot but not out of the inner lug whereby this end of the clamp may be raised to release the of the grooves on opposite sides of a given ridge and be forced by the next adjacent ridge to enter the pulley side of the belt thereby elinching the rivet.

13. An apparatus for fastening and riveting belts utilizing perforated metal grip plates and rivets having split ends comprising; a base member to receive the two ends of the belt, a clamp for each belt end, means for drawing the clamps securely across the belt ends, means for positioning the grip plates between the clamps, andV means on the base for directing the split rivet ends after they have been placed in the plate perforations and driven through the belt, so they will be clinched into the pulley side of the belt.

let. An apparatus for fastening and riveting belt-s utilizing perforated metal grip plates and rivets having split ends, comprising; a base member to receive the two ends of the belt, means for clamping the belt ends tothe base, means for properly positioning the grip plates over the belt ends, and means on the base for directing the split rivet ends, after they have been placed in the plate perforations and driven through the belt, so they will be clinched into the pulley side of the belt.

l5. An apparatus for fastening and rivetring belts utilizing perforated metal grip plates and rivets having split ends comprising; a base member to receive the two ends of the belt, said base member having a series of transverse ridges and grooves, and means assisting in properly aligning the ends of the belt thereon, means for clamping the belt ends to the base, and means for properly positioning the grip plates between said clamping means and over the belt endswhereby when the split rivets are inserted in the plate perforations and driven through the belt, the splitrivet ends will be, due to said ridges and grooves, clinched into the pulley side of the belt.

In testimony whereof, I afiix my signature.

STANLEY n. urnas.

lll) 

